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Ab Petersen Inc

In Home Supportive Care Agency in South Elgin, IL · enumerated 2018 · authorized official William Petersen, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1104315399

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Registry record

Entity type Organization (Type 2)
Legal business name Ab Petersen Inc
Other name <Unavail>
Practice address 65 Woodbury St, South Elgin, IL, 60177
Phone (847) 429-0100
Fax (847) 429-0101
Enumeration date May 3, 2018
Last updated in NPPES Jun 16, 2018

Taxonomy & classification

251J00000X Nursing Care Agency Agencies · License 4000348 (IL) Secondary
253Z00000X In Home Supportive Care Agency Agencies · License 3000143 (IL) Primary

Authorized official

Name William Petersen
Title Owner
Phone (847) 429-0100

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Who is the authorized official for Ab Petersen Inc?
NPPES lists William Petersen (Owner) as the authorized official for this organization.
What is the NPI number for Ab Petersen Inc?
The NPI for Ab Petersen Inc is 1104315399, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-16.